Waterproof and anti-UV: Our UV umbrellas can be used both in rain and on sunny days. Made from 100% polyester with a black rubberised 210T fabric and a high-tech nano polymer compound in the outermost coating, the sun protection layer on the surface of the umbrella can block 99% of UV rays, which is very water-repellent, mildew resistant and quick-drying. 8 ribs stable structure: Our unique frame systems are made of premium fibreglass and umbrella shaft made of high-quality aviation aluminium alloy, not easy to break or rust, which are durable and strong enough, it is more windproof and stable than a normal parasol or a mini umbrella. Portable and compact: CUBY UV protective umbrella specific open size is 95 cm / 37.4 inches, 0.35 kg / 0.77 lbs light. Foldable to 11 inches, equipped with a storage bag, easy to carry. Luxurious packaging makes it a perfect gift for lovers, children, ladies, boys, friends, couples, etc. Automatic open/close: no more nerves with cheap umbrellas that can only be opened cumbersomely. With just one push of a button when entering and leaving a building, bus or taxis, the automatic umbrellas opens and closes quickly, conveniently and reliably at any time. Cuby quality assurance: To extend the life of the umbrella, an improved spring design is used to tension the umbrella, so more force is required when retracting the umbrella, which is a normal phenomenon.